"Some Like It Hot": What is the author's argument and how does he use examples to support it?

Lessig writes about the definition and history of piracy illuding to music , TV and the radio. He states that definitions of piracy are ever changing and the boundaries keep growing with the addition of new technologies. His main argument is that as technology changes, piracy laws must be changed in order to accommodate the times. However, thus far the laws have not caught up. He uses specific examples of how piracy was used since the beginning of the entertainment industry's fusion with technology, and how many laws were put in place to battle it. But his arguments about present day piracy laws are lacking, causing his claim to appear weak. He contradicts himself with his examples and his final conclusion.